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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549



                                  SCHEDULE 13G


                    Under The Securities Exchange Act of 1934

                               (AMENDMENT NO.  6)*

                          Northern Technologies International Corp.
 -------------------------------------------------------------------------------
                                (Name of Issuer)


                                  Common Stock
 -------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   665809109
 -------------------------------------------------------------------------------
                                 (CUSIP Number)


                                DECEMBER 31 ,2003
 -------------------------------------------------------------------------------
             (Date of Event which requires filing of this statement)


Check the  appropriate box to designate the rule pursuant to which this Schedule
is filed:


            \x\     Rule 13d-1(b)

            \ \     Rule 13d-1(c)

            \ \     Rule 13d-1(d)


*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).







                                Page 1 of 7 Pages


CUSIP No. 665809109 13G Page 2 of 7 Pages - ------------ - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO OF ABOVE PERSON Kern Capital Management, LLC 13-3958232 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) / / - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 516,800 NUMBER OF -------------------------------------------------- SHARES BENEFICIALLY 6 SHARED VOTING POWER OWNED BY EACH - REPORTING -------------------------------------------------- PERSON WITH 7 SOLE DISPOSITIVE POWER 516,800 -------------------------------------------------- 8 SHARED DISPOSITIVE POWER - - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 516,800 - -------------------------------------------------------------------------------- 10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* - - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 14.3% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IA - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!

CUSIP No. 665809109 13G Page 3 of 7 Pages ------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO OF ABOVE PERSON Robert E Kern Jr. - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (c) / / (d) / / - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF - SHARES BENEFICIALLY ------------------------------------------------------- OWNED BY 6 SHARED VOTING POWER EACH REPORTING 516,800 - (See Schedule Item 4 PERSON WITH incorporated by reference) ------------------------------------------------------- 7 SOLE DISPOSITIVE POWER - ------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 516,800 - (See Schedule Item 4 incorporated by reference) - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 516,800 - (See Schedule Item 4 incorporated by reference) - -------------------------------------------------------------------------------- 10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* - - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 14.3% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!

CUSIP No. 665809109 13G Page 4 of 7 Pages ------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO OF ABOVE PERSON David G. Kern - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (e) / / (f) / / - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF - SHARES BENEFICIALLY ------------------------------------------------------- OWNED BY 6 SHARED VOTING POWER EACH REPORTING 516,800 - (See Schedule Item 4 PERSON WITH incorporated by reference) ------------------------------------------------------- 7 SOLE DISPOSITIVE POWER - ------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 516,800 - (See Schedule Item 4 incorporated by reference) - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 516,800 - (See Schedule Item 4 incorporated by reference) - -------------------------------------------------------------------------------- 10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* - - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 14.3% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!

CUSIP NO. 665809109 SCHEDULE 13G Page 5 of 7 Pages ITEM 1 (a). NAME OF ISSUER: Northern Technologies International Corp. ITEM 1 (b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 6680 N Highway 49 Lino Lakes, MN 55014 ITEM 2 (c). NAME OF PERSON FILING: Kern Capital Management, LLC ("KCM"), Robert E. Kern Jr.(R. Kern) and David G. Kern (D. Kern). R. Kern, D. Kern are Principals and controlling members of KCM. ITEM 2 (b). ADDRESS OR PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: The address of the principal business office of each reporting person is: 114 West 47th Street, Suite 1926, New York, NY 10036. ITEM 2 (c). CITIZENSHIP: Reference is made to Item 4 of each of the cover page of this Schedule, which Items are incorporated by reference herein. ITEM 2 (d). TITLE OF CLASS OF SECURITIES: Common Stock ITEM 2 (e). CUSIP NUMBER: 665809109 ITEM 3 (e) THE PERSONS FILING THIS SCHEDULE, PURSUANT TO PARAGRAPH 240.13d-1(b) ARE A: (X) Investment Advisor registered under section 203 of the Investment Advisors Act of 1940. ITEM 4. OWNERSHIP: Reference is made to Items 5-9 and 11 of cover pages which Items are incorporated by reference herein. R. Kern and D. Kern as controlling members of KCM may be deemed the beneficial owner of the securities of the company owned by KCM as of December 31, 2003 in that they might be deemed to share the power to direct the voting or disposition of the securities. Neither the filing of this Schedule nor any of its contents shall be deemed to constitute an admission that either R. Kern or D. Kern is, for any purpose, the beneficial owner of any such securities to which this Schedule relates, and such beneficial ownership is expressly denied.

CUSIP NO. 665809109 SCHEDULE 13G Page 6 of 7 Pages ITEM 5. OWNERSHIP OF MORE THAN FIVE PERCENT OR LESS OF A CLASS: If this statement is being filed to report the fact that as of the date here of the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following / /. Not applicable. ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON: The shares reported are held in institutional accounts for the economic benefit of the beneficiaries of those accounts. ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY: Not applicable. ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP: Not applicable. ITEM 9. NOTICE OF DISSOLUTION OF GROUP: Not applicable. ITEM 10. CERTIFICATION: BY SIGNING BELOW I CERTIFY THAT, TO THE BEST OF MY KNOWLEDGE AND BELIEF, THE SECURITIES REFERRED TO ABOVE WERE ACQUIRED AND ARE HELD IN THE ORDINARY COURSE OF BUSINESS AND WERE NOT ACQUIRED AND ARE NOT HELD FOR THE PURPOSE OF OR WITH THE EFFECT OF CHANGING OR INFLUENCING THE CONTROL OF THE ISSUER OF SUCH THE SECURITIES AND WERE NOT ACQUIRED AND ARE NOT HELD IN CONNECTION WITH OR AS A PARTICIPANT IN ANY TRANSACTION HAVING SUCH PURPOSES OR EFFECT. SIGNATURE: AFTER REASONABLE INQUIRY AND TO THE BEST OF MY KNOWLEDGE AND BELIEF, I CERTIFY THAT THE INFORMATION SET FORTH IN THIS STATEMENT IS TRUE, COMPLETE AND CORRECT. February 13, 2004 /s/ John J. Crimmins - --------------------------- By: -------------------------------------- DATED John J. Crimmins Senior Vice President Chief Financial & Operations Officer Kern Capital Management LLC /s/ Robert E. Kern Jr. By: -------------------------------------- Robert E. Kern Jr. /s/ David G. Kern By: -------------------------------------- David G. Kern

CUSIP NO. 665809109 SCHEDULE 13G Page 7 of 7 Pages EXHIBIT 1 AGREEMENT AS TO JOINT FILING OF SCHEDULE 13G This agreement is made pursuant to Rule 13d-1(f)(1) under the Securities and Exchange Act of 1934, as amended (the "Act"), by and among the parties listed below, each referred to herein as "Joint Filer". The Joint Filers agree that a statement of beneficial ownership as required by Section 13(d) of the Act and the Rules thereunder may be filed on each of their behalf on Schedule 13G and that said joint filing may thereafter be amended by further joint filings. The Joint Filers state that they each satisfy the requirements for making a joint filing under rule 13d-1. February 13, 2004 /s/ John J. Crimmins - ------------------- By: ---------------------------------------------- DATED John J. Crimmins Senior Vice President Chief Financial & Operations Officer Kern Capital Management LLC /s/ Robert E. Kern Jr. By: ---------------------------------------------- Robert E. Kern Jr. /s/ David G. Kern By: ---------------------------------------------- David G. Kern